Removal & Installation (6-Cylinder - E46)
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 1999 BMW Z3, 1999 BMW M3, 1999 BMW M Roadster, 1999 BMW M Coupe, and 1999 BMW 740iL. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect mass airflow sensor connector. Disconnect vacuum line from intake hose. Disconnect intake air hose clip. Disconnect clamps on intake filter housing. Remove intake hose with MAF sensor. See Fig 1. To install, reverse removal procedure. Check gasket between MAF sensor and upper section of air filter housing for damage. Replace as necessary.